Shared ownership trust: choosing market value treatment for stamp duty
Shared ownership trust election
A market value election can set SDLT by reference to the value figure in the trust and can protect later share payments from SDLT.
- The election is irrevocable.
- It belongs in the SDLT return or a timely amendment.
- Tax due when the trust starts must be paid for the later exemptions.
Scroll down for the full analysis.
Read the original guidance here:
Shared ownership trust: choosing market value treatment for stamp duty
Shared ownership trust: choosing market value treatment for stamp duty
If you buy through a shared ownership trust, you may be able to choose a different way to work out stamp duty land tax. This option is a market value election. It affects upfront tax and later exemptions.
What this rule is about
Shared ownership does not always use a lease. Sometimes a trust holds the home for you and a social landlord. You can live there, make an initial payment, and later pay for a larger share.
For SDLT, the law makes you, rather than the social landlord, the buyer of the trust property. Your SDLT return can therefore include the election.
This choice is not a routine box-ticking exercise. You cannot undo it later.
What the official source says
HMRC’s manual says a buyer under a shared ownership trust may elect for market value treatment, much like a buyer under a shared ownership lease. Make the election when you declare the trust.
- To qualify, the arrangement must meet the legal definition of a shared ownership trust.
- Trust must give buyer exclusive main-home use.
- A qualifying social landlord must be a beneficiary.
- The buyer must make an initial payment and may make later payments for a bigger share.
- The trust must state a sum that relates to the home’s market value.
- You must put the election in the SDLT return for the trust declaration, unless you amend that return within 12 months of its filing date. Do not leave it later.
- An amendment must be made within 12 months of the return’s filing date.
- You cannot revoke the election once you make it.
When you make a valid election, SDLT uses the sum stated in the trust that relates to the home’s market value, rather than the initial payment or rent-equivalent payments. Exclude rent-equivalent payments for SDLT.
HMRC says you should work out market value on a vacant-possession basis. In everyday terms, that means valuing the home as though it is empty. This is HMRC’s view in its manual. Schedule 9 disapplies the usual SDLT definition of market value for this purpose.
What this means in practice
An election shifts the focus to the full value figure set out in the trust terms. It also changes how later steps in the arrangement are treated.
- Later payments to buy a bigger share can be exempt from SDLT.
- The increase in your share that follows those payments can be exempt.
- The final transfer of an interest in the home when the trust ends can be exempt.
- You must have paid any SDLT due when you declared the trust before these election-based exemptions apply.
- Without it, the initial payment differs. Rent-equivalent payments count as rent for SDLT.
That does not mean the election always produces the lower bill. The starting figure may be higher than the initial amount you pay. Compare the whole arrangement before you file the return.
How to analyse it
Start with the documents, not the name given to the scheme. Calling an arrangement shared ownership does not by itself make it a shared ownership trust for SDLT.
- Check whether the trust meets every condition in Schedule 9.
- Identify the buyer, the social landlord and their rights under the trust.
- Find the stated sum that relates to the home’s market value.
- Separate the initial payment, rent-equivalent payments and later share payments.
- Compare the SDLT result with and without the election.
- Decide before filing whether to include the election in the return.
- If you have already filed the return, check the filing date immediately.
- Keep proof that you paid any SDLT due on the trust declaration.
If you only remember one thing, make it this: an election made now can govern the SDLT treatment of payments you make much later.
Example
Ravi enters a qualifying shared ownership trust for a home. The trust calculates the initial capital by reference to a value of £300,000. Ravi pays £75,000 at the start and makes rent-equivalent payments to the social landlord.
If Ravi makes a valid market value election, the SDLT calculation for the trust declaration uses the £300,000 figure stated in the trust. Ravi does not count the rent-equivalent payments for SDLT. If Ravi pays SDLT due on that declaration, his later payments to increase his share, and the final transfer when the trust ends, can be exempt.
This example does not calculate tax. The applicable SDLT rates depend on the date and facts of the transaction.
Why this can be difficult in practice
Often, the hard part is not filling in the return. It is understanding what the trust actually says and choosing before the deadline closes.
- The initial cash payment may not be the figure used after an election.
- A later amendment can make the election, but only within the amendment time limit.
- Another amendment cannot remove an irrevocable election.
- Use the trust’s stated value. Do not choose a later figure to suit the return.
- Missing proof that you paid SDLT at the start can matter when claiming the later exemptions.
- Do not confuse HMRC guidance with the legislation itself.
Key takeaways
- A shared ownership trust can allow a market value election for SDLT.
- Make the election in the return or within 12 months of its filing date.
- You cannot change the election once you make it.
Technical analysis
For advisers, and for anyone who wants to check the law behind this page. You do not need this section to understand the guidance above.
Legislation
- FA 2003 Schedule 9 para 7 — conditions for a shared ownership trust; special market value rule for the trust
- FA 2003 Schedule 9 para 8 — who counts as buyer of trust property
- FA 2003 Schedule 9 para 9 — market value election and its effects
- FA 2003 Schedule 9 para 10 — stamp duty exemption for later share payments
- FA 2003 Schedule 9 para 11 — treatment where no market value election
- FA 2003 Schedule 10 para 6 — deadline for amending a land transaction return
- FA 2003 section 118 — general meaning of market value for stamp duty
Official guidance
The pages below are HMRC’s guidance. Guidance is not law. It sets out how HMRC reads the legislation, and it is not binding on you, on a tribunal or on a court. Where guidance and the legislation differ, the legislation wins. HMRC can also change or withdraw guidance, and it may not cover your facts.
Where this is not settled
- Whether an arrangement meets every condition for a shared ownership trust depends on its trust deed and the status of the social landlord.
- The legislation disapplies the usual SDLT market value definition for this purpose. HMRC says this produces a vacant-possession basis, but that explanation appears in HMRC guidance rather than the text of Schedule 9.
- The right election may depend on the figures, the trust terms and the expected future payments.
Evidence you would need
This kind of case is decided on the facts of the individual property. These are the records that usually settle it, and the ones an adviser would ask you for.
- The signed trust deed and any documents setting out the initial capital
- The figure in the trust deed that relates to the home’s market value
- Details of the social landlord and its qualifying status
- The submitted SDLT return and its filing date
- Evidence that any SDLT due on the trust declaration was paid
- Records of later payments to increase the buyer’s share
Explore this with an AI
Readers often want to test their own situation. Copy the prompt below into ChatGPT, Claude or Gemini. It hands the model the actual legislation for this page rather than letting it answer from memory, and tells it to be explicit about what is uncertain. What comes back is information, not advice – check it against the links above.
I am researching UK Stamp Duty Land Tax (SDLT), which applies in England and Northern Ireland. MY QUESTION Shared ownership trust: choosing market value treatment for stamp duty [Replace this with your own situation: what you are buying, the price, the dates, who the buyer is, and what you plan to do with the property.] THE LAW THIS TURNS ON - FA 2003 Schedule 9 para 7 - conditions for a shared ownership trust https://www.legislation.gov.uk/ukpga/2003/14/schedule/9/paragraph/7/2025-11-17 - FA 2003 Schedule 9 para 7 - special market value rule for the trust https://www.legislation.gov.uk/ukpga/2003/14/schedule/9/paragraph/7/2025-11-17 - FA 2003 Schedule 9 para 8 - who counts as buyer of trust property https://www.legislation.gov.uk/ukpga/2003/14/schedule/9/paragraph/8/2025-11-17 - FA 2003 Schedule 9 para 9 - market value election and its effects https://www.legislation.gov.uk/ukpga/2003/14/schedule/9/paragraph/9/2025-11-17 - FA 2003 Schedule 9 para 10 - stamp duty exemption for later share payments https://www.legislation.gov.uk/ukpga/2003/14/schedule/9/paragraph/10/2025-11-17 - FA 2003 Schedule 9 para 11 - treatment where no market value election https://www.legislation.gov.uk/ukpga/2003/14/schedule/9/paragraph/11/2025-11-17 - FA 2003 Schedule 10 para 6 - deadline for amending a land transaction return https://www.legislation.gov.uk/ukpga/2003/14/schedule/10/paragraph/6/2025-11-17 - FA 2003 section 118 - general meaning of market value for stamp duty https://www.legislation.gov.uk/ukpga/2003/14/section/118/2025-11-17 Guidance page from HMRC on this topic (guidance, not law): https://www.gov.uk/hmrc-internal-manuals/stamp-duty-land-tax-manual/sdltm27075 HOW I WANT YOU TO ANSWER 1. Work from the legislation above. Read it before answering. Guidance from HMRC is its view of the law, not the law, and does not bind a tribunal or a court. 2. Tell me what the rule actually requires, in plain English. 3. Tell me which facts decide the answer, and which facts would change it. 4. Tell me what evidence I would need to support the position. 5. Be explicit about anything unsettled or fact-sensitive. Do not guess. 6. Your training data has a cutoff and SDLT rates and reliefs change at fiscal events. Say so if you are not sure the law is current. POINTS ALREADY KNOWN TO BE UNCERTAIN ON THIS TOPIC - Whether an arrangement meets every condition for a shared ownership trust depends on its trust deed and the status of the social landlord. - The legislation disapplies the usual SDLT market value definition for this purpose. HMRC says this produces a vacant-possession basis, but that explanation appears in HMRC guidance rather than the text of Schedule 9. - The right election may depend on the figures, the trust terms and the expected future payments. Do not give me a conclusion you cannot support from the provisions above.
Legislation links show Finance Act 2003 as it stood on 2025-11-17. The law may have changed since, and the rules that apply are those in force on the date of your transaction. The official guidance this page is based on is here.
This page was last updated on 1 September 2026
Useful article? You may find it helpful to read the original guidance here: Shared ownership trust: choosing market value treatment for stamp duty
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